How do u say 20,494,163 in wordform

How could you use the product of 108 and 4 to find the product of 324 and 4

Using the equation-x^2-8x-15 what are the coordinates of the vertex

Find the value of two numbers if their is 84 and their difference is 8.

Which of the following best describes the expression 3x+2y+8z

Find the measures of an interior angle and an exterior angle of a regular polygon with 8 sides.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.